Door operating and locking device.



H. G. VOIGHT.

DOOR OPERATING AND LOOKING DEVICE.

APPLICATION FILED KAILSI, 1914.

Patented Sept. 29, 1914.

2 SHEETS-SHEET 1.

A Harney THE NURRIS PTERS Co., PHOTO-LITHO.. wAsHlNGmN. Dv c4 H. G. VOIGHT. DOOR OPERATING AND LOGKING DEVIE.

APPLICATION FILED 11111.31, 1914.

1,1 12,342. Patented sept. 29, 1914.

2 SHEETS--BHEBT 2.

W NESSES INVENTOR y l 'l 444/ l Allomey 1HE NDRIS PETERS C0.. PHGYO-LITMO.. wAsHlNcroN. u. (L

HENRY G. VOIG'HT, OF NEW BRITAIN, CONNCIICUT.

Doon ornnix'riuennn LOCKING DEVICE.

To all whom it may concern Be it known that l, HENRY G. Voiorrr, of.

N ew Britain, in the county of Hartford and State of Connecticut, have invented certain new and useful lmprovements in Door Operating and Locking Devices; and I do hereby declare the following to be a full, clear, and exact description of the invention, suoli as will enable others skilled in the art to which it appertains to make and use the saine. i

My invention relates to door operating and locking device and adapted particularly for the doors of elevator wells, the object being to provide a construction wherein the actuating lever for opening the door may be within easy reach of the operator standing at the elevator controlling mechanism, and be so connected with the door controlling levers as to apply the power to the lateter at such point, that, the door may be readily opened by the expenditure. of less power, and consequently in a shorter time, than is possible with the constructionsnow in use.

A further object is to so construct and arrange the door actuating levers that when the door is open, less power` will be required to close it than is now necessary with the devices in use.

lWith these objects in view my invention consists in the parts and combination of parts as will be more fully explained and pointed out in the claims.

1n the accompanying drawings, Figure 1 is a view in elevation of the inner side of' an elevator well door as viewed from the elevator car, the position of the parts, in door open position, being indicated in dotted lines; F ig. 2, is a View `in plan of the lever mechanism; Fig. 3 is a view in elevation oi` a modified forni; Fig. 4 is a view in plan of the construction shown in Fig. 3,and Figs. 5 and G are views of modifications.

1 represents a sliding door of any con! specification of Letters Patent.I y Patented Sept, 29, 1914 Appiicaiion inea March si, 1911i.l semi N'Q. 823,615.

bracket 8 attached to the wall 3 of the ele vator well. VThis bracket is provided in the present instance, with two ears 9, carrying a pin 10 on which the levers 7 are mounted, and the latter are provided with means,

preferably elongated slots 11, for the adj ust- `able attachment of theI dependingiarm 12,

which is pivotally attached at its lower end to the door closer. This arm 12, is entered between thetwin levers 7 and forms a spacing block for the latter, and is secured to said levers by the bolts 13 passing through theai'ni12, and through the elongated slots 1l in. said levers. The object in using eloii- `gated slots, is to so locate the arm 12 with relation to the door closer and the toggle levers 6 and 7, that, when the door is open,

the spring in thedoor closer will be under maximum compression. After the arm has been properly located, it is locked by the bolts 13. It is clearly evident that instead c tusing elongated slots as shown, l may use a plurality ofholes as shown in Fig. 3, or I may corrugate the contacting faces of the arm 12 and lever 7 and lock the arm by `a single bolt as shown in Fig. 6. The two levers G and `7, form toggle levers oi unequal length, the levers which are connected to the closing and checking mechanism being shorter than the lever connected with the door, so that less power will be required to close the door than would be the case with levers of equal length, or `where the lever attached to the door is of less length than the lever connected with the door closer.

\ The door closer may be substantially as shown in Patent No. 1,085,070 granted to me January 20th, 1914, and consists of a cylin der 14, pivoted at its lower end vto bracket 15` secured to the end wall 3 of the elevator well, and carrying a valve piston to which the rod 16 is connected, the said rod passing through a stuing box in the uppery end of cylinder 14 and connected at its upperend to the arm 12 by pin 17. The cylinder` contains a liquid, which, when the door is closed, rests above the piston, and a spring within the cylinder above theV piston, normally tends to depress lthe piston,so that as the door 1 is opened the piston will be elevated thus compressing the spring and causing the liquid to pass through the valved opening in the piston to a position below the latter, and thus act to` cushion the closing ac-` tion, due` to the pressure or expansion 0i the spring during' the closing movement of the door.

Secured to the inner stile of the door 1, is the plate 17a having a lug 18 on which'the actuating lever 19 is mounted. The front or handle end 20 of this lever is supposed to' be within easyreach of the operator standing in position adjacent the car control, and if necessary its front end may be turned down so as to bring it closer to the wall 3 as shown in dotted lines in Fig. 1, or the plate 17 may have a rearwardly extending bracket carrying the lug 18, so as to carry the axis of the lever to the rear as shown in Fig. 5.v j n Pivotally secured by pin 21 to lever 19, in rear of the pivotal point o-r axis of the latter, is the upwardly inclined link 22, provided at its upper end with an elongated slot `23 through which the pin 2Licarried by the twin levers 7 passes. 'iLhis link passes up between said levers 7 and engages the pin 24, and also rests against the top side of shoulder 25 at the rea-r end of lever 19.

`Lever 6 terminates at its rear end in a finger 26, shown in dotted lines in Fig. 1, which, when the door is`closed supports the toggle levers on a dead center or in their doo-r locking position.

To open the door, the operator grasps handle 20 of lever 19, and pulls or ushes downwardly thereon. This elevates link 22, andthe latter' bearing against pin 2st carried bv the shorter lever 7, and located adjacent the hinge joint .connecting said toggle levers, applies the opening power against said levers at a point where the greatest possible leverage is obtainable, and thus readily breaks the joint in the toggle and starts the opening movement of the door. As the lever 19 is carried by the door, it will be seen that a pull on lever 19 irst breaks thev toggle joint and then opens the door. As the door moves to open position, the longer lever 6, elevates the front end of twin levers 7 which pull upwardly on the piston e rod 16, and v,puts the spring in cylinder 14:

Linder compression. As soon as handle 19 is released by the operator, the spring acting against the piston, forces the latter inwardly and pulling, through the rod 16 on the toggles, brings the latter down to horizontal or dead center position, and when in such latter position the toggles act as a lock for the door.

Link 22 normally rests on shoulder 25 carried by the rear end of lever 19, and the pin 24 in toggle lever 7 rests in the elongated slot in said link,` hence after the initial movement of lever 19v to break the toggle joint, the said lever 19 comes in contact with stop 28 :on plate 17a, thus forming i-n eieet a rigid handle fby which the door is pulled to open position, the slot 23v in link 22 permitting the latter to freely swing with the opening movement of the links without interfering in the least with the latter.

In the construction shown in Figs. 8 and 4, 1 have dispensed with the link 22 and connected lever 19a directly at the joint of the toggle lever, and provided t-lie lever 19n with an elongated slot through which the pivot pin on the inner stile of the door passes. In other respects it may be like the construction shown in Fig. 1.

Great difficulty has heretofore been experienced in the use of these devices on elevator doors due to the tact, that, as the width ot the opening in the elevator well has increased, it has been necessary to proportionately lengthen the toggle arms, thus necessitating a proportionate increase iii power necessary to break the joint which makes the work quite laborious.

in order to make the device most ciiicient for quick closing, it is necessary that the rear toggle lever be as short as possible, consequently the front lever must be proportionately lengthened, and as sta-ted above, this lengthening of the front lever increases the power necessary to break the joint and start the opening movement.

lilith my improvement the leverage for breaking the toggle is in no wise aifected by any increase in length ot the front toggle arm consequently I get the greatest eiiiciency both in breaking the toggle and also in closing the door.

It is evident that many slight changes might be resorted to in the relative arrangement of parts shown and described without departing from the spirit and scope of my invention. Hence I would have it understood that I do not wish to coniine myself to the exact construction and arrangement of parts shown and described but,

Having fully described my invention what l claim as new and desire to secure by Letters-Patent, is

1. Means for opening and closing a sliding door consisting ol toggle levers connected at one end to the door and at the other end to a iixed support, an actuating lever mounted to turn on a support carried by the door a link having pivotal connection with the actuating lever and loosely connected with the toggle lever adjacent the joint in the latter, and automatic means for moving the levers in a direction to close the door.

2. Means for opening and closing a sliding door consisting of toggle .levers connected at one end to the door and at the other `end to a iixed support, an actuating lever mounted to turn on a support carried by the the door.

3. Means for opening and closing a slid-- ing door consisting of two connected levers, one longer than the other, the longer leverl being connected to the door and the shorter lever to a fixed support, an actuating lever carried by the door and connected With the shorter lever and automatic means for moving the levers in a direction to close the door.

4. Means for opening and closing a slid-` ing door consisting of tWo connected levers one longer than the other, the longer lever being connected to the front stile of the door and the shorter lever to a fixed support, an actuating lever carried on a support secured to the rear stile of the door and connected with said shorter lever at the rear of the joint and means for' moving said i levers in a direction to close the door.

5. In a sliding door opening and closing mechanism, the combination of' a lever pivoted to a fixed support, mechanism connected With said lever for automatically closing the door, an actuating lever fulcrumed intermediate its ends on a support carried by the door, a link pivoted to said actuating lever adjacent the rear end of the latter provided with an elongated slot and a pin carried by said first mentioned lever and passing through the slot in the link.

6. In sliding door opening and closing mechanism, the combination of toggle levers connected at one end to a door and at the other end to a fixed support and door closing mechanism adjustably connected With i one of said levers.

`by the door and connected with the toggle levers adjacent the joint in the latter and door closing mechanism adjustably connect ed with one of said levers. f

8. In sliding door opening and closing mechanism, the combination 'of toggle levers connected at one end to the door and at the other end to a fixed support, a door closing mechanism connected with one of said levers, an actuatinglever pivoted to a support on the door, a stop for limiting the turning movement of said actuating lever, a slotted link connected to the rear end of said actuating lever, a pin on one of the toggle levers passing through the slot in the link for operatively connecting the link to the levers, and a shoulder on the actuating lever against which the link normally rests. j

In testimony whereof, I have signed this specification in the presence of tvvo subscribing Witnesses. i

HENRY G. voiGHT.

Witnesses:

S. C. HILL, A. W. BRIGHT.

Copies of this patent may be obtained for nve cents each, by addressing the Commissioner of Patents, Washington, D. C. 

